Solid Bars connecting battery terminals?

[Bires]

I saw these at amazon. Rather than using the 8" 4/0 that comes with the rack mount batteries, I could use these, with a healthy amount of heat-shrink to connect the terminals.

I could also make my own from copper stock.

Thoughts?

 

[EPicTony]

Cross sectional area is 2x20 MM^2. As long as you don't exceed the current limit (about 125A) you are good.

 

[robbob2112]

Most use a bus bar that allows the cells to move without stressing the terminals.

 

[NotTooBright]

I made my own for 4 batteries in parallel on my camper trailer.